iTunes update - not working
I opened iTunes tonight and got a notification to update. I clicked ok to update and nothing happened. I tried to reopen iTunes and still nothing happened. I went to the iTunes site, got the downloaded and the install failed. I closed all my programs and tried to restart my MacBook pro (mid 2009 with new Samsung 1TB harddrive). The chime went off and I came to the default boot screen but instead of a normal boot I got a loading bar. Once the bar filled up all ingot was the apple logo and a spinning gear. After waiting a few minutes for my log in screen to show up, I held the power button down to start all over. Same process. Same result. Please can someone help me?
MacBook Pro, Mac OS X (10.6.5)